RDG Red Data Girl OP Single - Small Worldrop story is extremely good in the way it's done. They bring in cultural elements that are accurate and develop them into the story. It is a beautiful and green anime, with a dark vibe. I really recommend to watch it, at least until ep 6. Then you will be able to know if you like it or not. The sound was really awesome. I liked all the OSTs and the opening and ending was awesome.